How many total Air Filtration Technologies companies are there?

As of Apr 2026, there are 64 active companies in Air Filtration Technologies sector.

Which countries have the most Air Filtration Technologies companies?

United States (12) has the highest number of Air Filtration Technologies companies, followed by India (8) and United Kingdom (6).

How many Air Filtration Technologies companies are funded?

As of Apr 2026, 28 companies in this sector have received funding.

Which company has raised the most funding in Air Filtration Technologies sector?

As of Apr 2026, Aqdot has secured $35.4M in funding, making it the highest-funded company in the Air Filtration Technologies sector.

Which country has attracted the most investment in Air Filtration Technologies companies?

With $35M in total funding, United Kingdom has attracted the most investment among Air Filtration Technologies companies.

How much venture capital has Air Filtration Technologies sector attracted?

In the last 10 years, venture capital firms have invested $40.6M in this sector.

Air Filtration Technologies - 2026 Market & Investments Trends

Q: Who are the top investors in Air Filtration Technologies companies?

The top investors in Air Filtration Technologies companies by number of investments are Europa, Parkwalk and Imperial Innovations

Most viewed in 2019

The Air Filtration Technologies comprises 69 companies, including 28 funded companies having collectively raised $84.6M in venture capital money and private equity. Out of these, 18 are Series A+ funded.

Air Filtration Technologies sector has seen 8 acquisitions and 3 IPOs. This represents almost 15.9% of all such companies - which is higher than the 4.9% exit rate of tech companies in general.

This sector includes companies providing air purification solutions such as purifiers, filters, and masks.

Air Filtration Technologies sector is also known as HVAC Air Purifiers, Environmental Air Systems or HEPA Filtration Systems.

Key Metrics

Total Companies

Top Companies

Verlume, Blueair & more

Total Funding

$84.6M

Funded Companies

Series A+ Companies

Series C+ Companies

IPOs

Acquisitions

Also known as

HVAC Air Purifiers or Environmental Air Systems

View complete details of this sector

There are more than 69 companies in Air Filtration Technologies. Verlume is the top Air Filtration Technologies company globally, ranked using Tracxn Score (what's this?).

Here are 5 of the top Air Filtration Technologies companies globally:

Company	Description	Location	Founded	Current Stage	Private Funding Raised
Verlume	Provider of energy management solutions for commercial and industrial solutions	Aberdeen (United Kingdom)	2013	Series A	$12.3M
Blueair	Manufacturer of air purification products designed for indoor air quality	Stockholm (Sweden)	1996	Acquired	-
Camfil	Provider of air filters & air filtration services	Stockholm (Sweden)	1963	Acquired	-
PI Green Innovations	Provider of sustainable technology solutions for air purification and emission control	Pune (India)	2019	Series A	$5M
AIM	Manufacturer of air filtration media for HVAC, automotive, and healthcare applications. It produces nonwoven materials using various in-house technologies, including meltblown, thermal bonding, and needle punching. The company offers media for pre and fine filters in the HVAC market, materials for cabin air filters, fuel water separators, and engine air filtration in the automotive sector, and filtration materials for surgical face masks and respirators in the healthcare industry. Additional applications include hydraulic and water filtration. The materials meet global standards such as ISO 16890 and EN 779.	Pune (India)	2001	Series A	$4.33M

Get a longer list of companies

Companies founded year-on-year in Air Filtration Technologies

6 Air Filtration Technologies startups were founded in 2020 - this is the most number of startups founded in any year in the last 10 years.

Total Number of Companies

Year	No. of companies
2026	-
2025	-
2024	3
2023	3
2022	2
2021	4
2020	6
2019	5
2018	2
2017	-

Companies founded across countries in Air Filtration Technologies

United States has 12 Air Filtration Technologies startups, the most by any country, followed by India which has 8 startups and United Kingdom which has 6.

Total Number of Companies

Country	No. of companies
United States	12
India	8
United Kingdom	6
Italy	5
China	4
Sweden	4
South Korea	3
Germany	3
Netherlands	3
Malaysia	2

Stage-wise distribution of Air Filtration Technologies

Out of the total 69 Air Filtration Technologies companies, 28 have secured funding. Among them, 18 have reached Series A or higher, and 13 to Series B or beyond.

Founded - 69

Funded - 28

Series A+ - 18

Series B+ - 13

Series C+ - 12

Company Stage	No. of companies
Founded	69
Funded	28
Series A+	18
Series B+	13
Series C+	12

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65+ Total Companies
$84.6M+ Total Funding
25+ Funded Companies
5+ Acquisitions

Total funding year-on-year in Air Filtration Technologies

Air Filtration Technologies saw a total funding of more than $69.8M in the last 10 years. The most amount of funding was in 2021 at more than $22.4M.

Total Funding

Year	Total Funding
2025	-
2024	-
2023	$13.5M
2022	$3.38M
2021	$22.4M
2020	$1.24M
2019	$8.18M
2018	$4.75M
2017	$7.88M

Total funding across countries in Air Filtration Technologies

In the last 10 years, Air Filtration Technologies startups in United Kingdom have recieved the highest funding among all countries - $35M. India follows with $6.78M and United States with $5.56M.

Total Funding

Country	Total Funding
United Kingdom	$35M
India	$6.78M
United States	$5.56M
South Korea	$3.73M
China	$2.93M
Italy	$1.61M
Spain	$781K
Sweden	$435K
Chile	-

Total funding amount raised by stage in Air Filtration Technologies

Over the last 10 years, Air Filtration Technologies have seen $3.09M into Seed Stage funding rounds, $36.1M into Early Stage funding rounds and $14.7M go into Late Stage funding rounds.

Funding Stage	Total Funding
Early Stage	$36.1M
Late Stage	$14.7M
Seed Stage	$3.09M
Grant	$3.02M

Recent Funding Rounds in Air Filtration Technologies

In the year 2025, till September 2025, Air Filtration Technologies companies have raised equity funding across 1 round. In the same period last year (i.e. till February 2024), Air Filtration Technologies companies had raised equity funding across 1 round.

Here are some recent, important funding rounds in Air Filtration Technologies:

Company	Round Raised	Amount Raised	Funding Date	Investors
CASSIE	Seed	9534	Sep 24, 2025	Big Idea Ventures and 2 more
A2US	Seed	3857	Feb 15, 2024	POSTECH Holdings
KhanFilter	Series A	6045	Aug 18, 2023	Samchully Group
CoClean	Series B	6419	Jun 14, 2023	Beijing Zhonghai Investment Management ... and 2 more
Verlume	Series A	4374	Apr 24, 2023	The Scottish National Investment Bank ... and 3 more

See a more detailed list of funding rounds

Europa is the top investor in Air Filtration Technologies companies based on number of companies invested.

Here are some top investors in Air Filtration Technologies:

Investor	Location	Top Portfolio Companies
Europa	Belgium	Camfil, Aqdot, Air Clean and ISCLEANAIR
Parkwalk	London (United Kingdom)	Aqdot
Imperial Innovations	London (United Kingdom)	Aqdot
Cambridge Enterprise	Cambridge (United Kingdom)	Aqdot
Orchard Ventures	Orem (United States)	Verlume

See a more detailed list of investors

In the year 2025, till May 2025, 1 acquisition happened in Air Filtration Technologies. Last year, in 2024, a total of 3 acquisitions happened in Air Filtration Technologies.

Here are some recent, important acquisitions in Air Filtration Technologies:

Company	Acquisition Type	Acquisition Date	Acquirers
Hygrade Industrial Plastics	Business Acquisition	May 28, 2025	Ergapc
IJskoud	Business Acquisition	Dec 19, 2024	Nordicclimategroup
SecureAire	Business Acquisition	Sep 18, 2024	R-Zero
Avelair	Business Acquisition	Jul 23, 2024	-
Nano-purification solutions	Business Acquisition	Jan 04, 2021	Atlas Copco Group

See a more detailed list of acquisitions

Acquisition trends in Air Filtration Technologies

Here are the acquisition trends in Air Filtration Technologies:

Total Number of Acquisitions

Year	No. of companies
2026	-
2025	1
2024	3
2023	-
2022	-
2021	1
2020	-
2019	1
2018	-
2017	-

In the year 2023, till October 2023, 1 IPO happened in Air Filtration Technologies.

Here are some recent, important IPOs in Air Filtration Technologies:

Company	IPO Date	Exchange Symbol
Seibu Giken	Oct 03, 2023	Tokyo Stock Exchange (TSE)
Greenfiltec	Jun 30, 2022	Taipei Stock Exchange (TT)

See a more detailed list of IPOs

Companies founded by alumni from top colleges in Air Filtration Technologies

Most number of Air Filtration Technologies startups have been founded by alumni from BITS Pilani, IIT Madras and Tel Aviv University.

College	No. of companies
BITS Pilani	1
IIT Madras	1
Tel Aviv University	1
University of Cambridge	1

Total funding in companies founded by alumni from top colleges in the Air Filtration Technologies

In the last 10 years, University of Cambridge graduates' Air Filtration Technologies companies have raised the most funding among top colleges. IIT Madras alumni are second.